An Arizona home inspection is a visual evaluation of a property’s major systems, performed by an inspector certified by the Arizona Board of Technical Registration (BTR), and usually completed inside a 10-day contractual window after the purchase contract is accepted. The inspector follows a specific set of state-adopted standards, delivers a written report, and the buyer then has a tight timeline to respond. Several important things fall outside that standard inspection, so knowing the scope before you order one shapes what else you need to pay for.
What a Standard Inspection Covers
Every certified inspector must follow the Standards of Professional Practice adopted by the Arizona Chapter of the American Society of Home Inspectors and written into state administrative code.1Legal Information Institute. Arizona Code R4-30-301.01 – Home Inspector Rules of Professional Conduct The inspection is visual. The inspector looks at what is readily accessible without moving furniture, dismantling equipment, or performing destructive testing.
At minimum, the inspection must cover:
- Structural components
- Roofing
- Exterior surfaces
- Plumbing
- Electrical systems
- Heating
- Central air conditioning
- Interiors
- Insulation and ventilation
- Grading and drainage around the foundation
After the inspection, the inspector must deliver a written report describing each system inspected. If a component covered by the standards was present but not inspected, the report has to identify it and explain why. That requirement gives you a paper trail. If a system is simply missing from the report with no explanation, the inspector has potentially violated the standards.2Arizona Board of Technical Registration. Standards of Professional Practice for Arizona Home Inspectors
What a Standard Inspection Does Not Cover
This is where buyers get surprised. The standards explicitly exclude several things people assume are included. Inspectors are not required to estimate the remaining life of any system, calculate repair costs, or evaluate anything concealed, inaccessible, or dangerous to reach.2Arizona Board of Technical Registration. Standards of Professional Practice for Arizona Home Inspectors
A standard inspection also does not include testing for hazardous substances. Mold, mold spores, radon, asbestos, lead paint, and soil or water contaminants are all outside the scope. If any of these concern you, hire a specialist separately.
Sewer lines are another common gap. A standard inspection looks at visible plumbing inside the house, but a camera inspection of the underground sewer lateral connecting your home to the main line requires a separate sewer scope. In a state with many homes on expansive clay soils and aging infrastructure, skipping the sewer scope is one of the more expensive gambles a buyer takes.
Termite and Pool Inspections
Two add-ons come up often enough in Arizona that they deserve their own planning.
Wood-Destroying Insect (Termite) Inspections
Termite inspections are not part of the standard home inspection and are regulated by a different agency entirely. The Arizona Department of Agriculture’s Pest Management Division oversees wood-destroying insect work. Only a certified applicator with a Category 2a or 2b pest management certification can perform a Wood Destroying Insect Inspection Report (WDIIR).3Arizona Department of Agriculture. Guidance for Completing the WDIIR Form
Arizona law does not require a WDIIR for a home sale. The requirement, when it exists, comes from the lender. VA and FHA loans commonly require a clear termite report before funding, and some conventional lenders do as well. If your financing requires one, the lender will say so. Even without a lender mandate, ordering a WDIIR is worth the cost given how common subterranean termites are in the desert climate. The report typically runs a few hundred dollars.4Arizona Department of Agriculture. Wood Destroying Insect Inspection Reports
Pool and Spa Inspections
Arizona has a separate set of BTR standards for pool and spa inspections. A certified home inspector performing one must observe the pool structure, equipment, child-safety barrier provisions, and entrapment prevention components.5Arizona Board of Technical Registration. Arizona Home Inspector Pools and Spas Standards of Professional Practice
There is an important distinction here. The inspector checks whether safety barriers and drain covers exist, but is not required to evaluate whether those features comply with current building codes or are adequate to prevent accidents. Arizona law requires residential pools to be enclosed by a barrier at least five feet tall on the exterior side, with self-closing and self-latching gates, among other specifications.6Arizona Legislature. Arizona Code 36-1681 – Pool Enclosures; Requirements; Exceptions; Enforcement The report will note whether a barrier is present. Verifying that it actually meets the legal requirements falls on the homeowner.
Pool inspections are not automatically included in a standard home inspection. You usually have to request and pay for the add-on. A pool system failure or a barrier deficiency can be expensive and dangerous, so this is one worth ordering.
The 10-Day Inspection Period and the BINSR
The standard Arizona residential purchase contract, published by the Arizona Association of REALTORS, gives the buyer an inspection period that defaults to 10 days after contract acceptance. This is a contractual right, not a statutory one, so the parties can negotiate a shorter or longer window.
Within that period, the buyer schedules the inspection, reviews the report, and investigates any other property concerns. The 10-day clock is tighter than many buyers realize because it also includes submitting the Buyer’s Inspection Notice and Seller’s Response (BINSR) form. The BINSR is how you formally communicate your decision after the inspection. You have three options:
- Accept the property as-is
- Request that the seller address specific items
- Cancel the contract based on what the inspection revealed
If you fail to deliver a BINSR within the inspection period, you generally waive the right to request repairs or cancel under the inspection contingency.
When you request repairs or concessions, the seller responds, agreeing to all, some, or none of the requests. If the seller refuses to address every item you raised, the decision returns to you: accept what the seller offered and move forward, or cancel the contract and recover your earnest money. The specific response deadlines sit in the contract itself, so read yours rather than relying on defaults.
Seller Disclosures You Should Receive
Arizona’s disclosure rules have two layers that buyers and sellers should understand separately, plus a federal layer for older homes.
The Seller’s Property Disclosure Statement
The Seller’s Property Disclosure Statement (SPDS) is a contractual form, not a statutory mandate. The standard Arizona purchase contract requires the seller to complete and deliver the SPDS within a few days after contract acceptance. The form asks detailed questions about known defects in major systems, past insurance claims, previous repairs, and environmental hazards.
The seller answers based on current knowledge. The SPDS is not a warranty or guarantee of the property’s condition. It reflects what the seller knows when they complete it, and undisclosed known defects can support a legal claim after closing.
Affidavit of Disclosure for Unincorporated Land
A.R.S. § 33-422 imposes a separate, legally required disclosure for sales of five or fewer parcels of land in unincorporated areas. The seller must provide a written affidavit of disclosure to the buyer at least seven days before the property transfers, and the buyer must acknowledge receipt. The affidavit covers items that matter for rural or unincorporated properties: legal and physical access, road maintenance agreements, flood zone status, water supply, on-site wastewater facilities, solar and battery storage equipment, and proximity to military installations, among others.7Arizona Legislature. Arizona Revised Statutes Title 33 Section 33-422 – Land Divisions; Recording; Disclosure Affidavit
If the seller omits information or misrepresents something in the affidavit, the buyer cannot be forced to waive the seller’s liability. Any release or waiver written into the contract is void. The buyer also has a five-day rescission right after receiving the affidavit.7Arizona Legislature. Arizona Revised Statutes Title 33 Section 33-422 – Land Divisions; Recording; Disclosure Affidavit
Federal Lead-Based Paint Disclosure
For homes built before 1978, federal law adds a disclosure requirement on top of anything Arizona requires. Under the Residential Lead-Based Paint Hazard Reduction Act, sellers must disclose any known information about lead-based paint or lead paint hazards in the home. They must also provide all available records and reports on the subject, give the buyer a copy of the EPA pamphlet “Protect Your Family From Lead in Your Home,” and include a lead warning statement in the contract. The buyer gets a 10-day period to arrange a lead paint inspection or risk assessment.8United States Environmental Protection Agency. Lead-Based Paint Disclosure Rule (Section 1018 of Title X)
Homes built after 1977 are exempt, as are foreclosure sales and certain housing designated exclusively for elderly residents or persons with disabilities, unless a child under six lives or is expected to live there.8United States Environmental Protection Agency. Lead-Based Paint Disclosure Rule (Section 1018 of Title X)
Verifying Your Inspector and Filing a Complaint
Anyone performing fee-based home inspections in Arizona must hold an active certification from the BTR. Before you hire, verify the inspector’s active certification status directly through the board.9State Board of Technical Registration. Home Inspections General Information Certified inspectors are also required to carry financial assurance, either errors and omissions insurance or a surety bond, which gives you a potential route to recover damages if negligence causes real harm.10Arizona Legislature. Arizona Code 32-122.02 – Certification of Home Inspectors; Insurance
If an inspector fails to follow the standards or behaves negligently, you can file a complaint with the BTR. The board reviews the evidence and an Enforcement Advisory Committee investigates. Possible outcomes range from a consent agreement with corrective requirements to suspension or revocation of the inspector’s certification under A.R.S. § 32-150. The BTR can also hold a formal administrative hearing.
Keep your inspection report and all communications with the inspector. If a problem surfaces months after closing that the report should have caught, those records are essential to building a complaint or a civil claim.